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Validity and Semantics – Two Essential Parts of a Backbone for an Automated PDF/UA Compliance Check for PDF Documents

  • Conference paper
Computers Helping People with Special Needs (ICCHP 2012)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 7382))

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Abstract

The paper shows why validity and semantics matters for a PDF/UA evaluation concept and how an automated checking tool can address this. In order to translate machine-testable requirements into checking criteria a special query language is developed called PQL (PDF Query Language). PQL will be implemented in PDF Accessibility Checker PAC 2, the first and free PDF/UA compliance checker crowd-funded by the foundation “Access for all”.

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References

  1. Chisholm, W.: Validity and Accessibility, http://www.w3.org/WAI/GL/2005/06/validity-accessibility.html

  2. Erle, M.: PDF umsetzen und prüfen. In: Hellbusch, J.E., Probiesch, K.: Barrierefreiheit verstehen und umsetzen. Webstandards für ein zugängliches und nutzbares Internet, 433–516 (2011)

    Google Scholar 

  3. Johnson, D.: Each PDF Page is a Painting, http://www.appligent.com/talkingpdf-eachpdfpageisapainting

  4. Johnson, D.: Objects and Semantics, http://www.appligent.com/talkingpdf-objects-and-semantics

  5. Johnson, D.: Review PAC (PDF Accessibility Checker) 1.1, http://www.appligent.com/talkingpdf-PDFAccessibilityCheckerReview

  6. PDF Accessibility Checker (PAC), http://www.access-for-all.ch/en/pdf-lab/pdf-accessibility-checker-pac.html

  7. PDF Reference / ISO 32000-1, http://www.adobe.com/devnet/pdf/pdf_reference.html

  8. PDF/UA (Universal Accessibility) / ISO 14289-1, http://pdf.editme.com/PDFUA

  9. Foundation “Access for all“, a Swiss non-profit organization, and their crowd funding for PDF Accessibility Checker PAC 2, http://www.access-for-all.ch/en/pdf-lab/pdf-accessibility-checker-pac/donation-pac-2.html

  10. WCAG 2.0-Techniques for PDF, http://www.w3.org/WAI/GL/WCAG20-TECHS/pdf.html

  11. Web Content Accessibility Guidelines WCAG 2.0, http://www.w3.org/TR/WCAG/

  12. XML Path Language (XPath) Version 1.0, http://www.w3.org/TR/1999/REC-xpath-19991116/

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Author information

Authors and Affiliations

  1. Wertewerk, Tuebingen, Germany

    Markus Erle

  2. xyMedia GmbH, Volketswil, Switzerland

    Samuel Hofer

Authors
  1. Markus Erle
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  2. Samuel Hofer
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Editor information

Editors and Affiliations

  1. Institut Integriert Studieren, University of Linz, Altenbergerstraße 69, 4040, Linz, Austria

    Klaus Miesenberger

  2. University of San Francisco, 2130 Fulton St., 94117, San Francisco, CA, USA

    Arthur Karshmer

  3. Support Centre for Students with Special Needs, Masaryk University, Botanická 68A, 602 00, Brno, Czech Republic

    Petr Penaz

  4. Institute "integriert studieren", Vienna University of Technology, Favoritenstr. 11/029, 1040, Vienna, Austria

    Wolfgang Zagler

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© 2012 Springer-Verlag Berlin Heidelberg

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Erle, M., Hofer, S. (2012). Validity and Semantics – Two Essential Parts of a Backbone for an Automated PDF/UA Compliance Check for PDF Documents. In: Miesenberger, K., Karshmer, A., Penaz, P., Zagler, W. (eds) Computers Helping People with Special Needs. ICCHP 2012. Lecture Notes in Computer Science, vol 7382. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31522-0_93

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  • DOI: https://doi.org/10.1007/978-3-642-31522-0_93

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-31521-3

  • Online ISBN: 978-3-642-31522-0

  • eBook Packages: Computer ScienceComputer Science (R0)

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